var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var session = require("express-session");
var FileStore = require("session-file-store")(session);

const sessionMiddleware = session({
  store: new FileStore(),
  secret: "fasdf",
  cookie: { maxAge: 24 * 3600 * 1000 }
});
/* store 表示session数据持久化方式， 这里是本地文件储存。
   secret 是一个加密key, 可以随意写一写字符串, 比如"我很严肃!"
   maxAge 表示本次请求和下次请求之间的事件(毫秒), 如果超过, session 会话失效。
 */

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, 'public')));

app.use(cookieParser());
app.use(sessionMiddleware);

app.use('/', indexRouter);
app.use('/users', usersRouter);

// // catch 404 and forward to error handler
// app.use(function(req, res, next) {
//   next(createError(404));
// });

// error handler
app.use(function(err, req, res, next) {
  console.log(err);
  // // set locals, only providing error in development
  // res.locals.message = err.message;
  // res.locals.error = req.app.get('env') === 'development' ? err : {};

  // // render the error page
  // res.status(err.status || 500);
  // res.render('error');
});

module.exports = app;
